<div class="page_404">
  <div class="div_404">
    <div class="img_404"></div>
    <div class="button_404">
      <h1>404</h1>
      <div class="text_404">抱歉，你访问的页面不存在</div>
      <button nz-button nzType="primary" routerLink="/main/index">返回首页</button>
    </div>
  </div>
</div>